| 摘要 |
A method of producing durable, structurally strong, investment quality gold articles of high troy weight, excellent color and revealing properties and the method of their production are described, including the formation of a structural base from an alloy containing not over 8.33% of a strengthening material such as chromium, titanium or vanadium, which can provide the required strength and hardness in low concentrations, and overlayment or "overarching" with a gold alloy coating in a manner such that both alloys are visible. The structural base provides the support, strength and resistance to corrosion in articles of various shapes, while retaining a high degree of gold purity.
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